Submersible device



Sept. 30, 1930. "P HERBST y l1,776,791

SUBIERSIBLE DEVICE Filed Nov. 9,- 2.91%94 Patented Sept. .30,- 1930 UNITED STATES'- PAUL HERBST, F BEEN-IEN, GERMANY SUBMERSIBLE DEVICE Application led November 9, 1929, Serial No.

This invention relates to a submersible device for advertising purposes and toys which has the effect that the submersible body fitted withthe submerging arrangement immerses and emerges automatically during a longer period.

The feature of the invention consists in that in the submersible body compressed air is stored, escapes through a very finely adjustable valve in extremely small quantities and retained outside the submersible body until the collected quantity through its tendency to rise draws up the submersible body, Where through the influence of the surface of the water the collected quantity of air separates from the submersible body which then again sinks vuntil a sufcientquantity of air has again collected outside the submersible body to force up this body. This operation is repeated as long as the excess pressure of the air stored in the submersible body is able to overcome the resistance of thewater column Vabove the valve opening,

- when the submersible body is in submergedY position.

y Several embodiments of the invention are illustrated by vway of example in the accom# panying drawing in which Fig. 1 shows the valve for the smallest submersible bodies.

Fig. 2 shows the arrangement for larger sized submersiblev bodies.

Fig. 3 shows the arrangement for largest .sized submersible bodies.

Fig. l is a diagrammatic sectionl of a submarine fitted with the arrangement foor submerging and rising.

The invention consists essentially of a valve which releases from a compressed air or gas chamber the smallest imaginable quantity of air or gas in a certain unit of -time which was practically impossible with a small tap or ordinary valve. This valve, shown -in Fig. 1, consists of a cylindrical valve body b closed at one end by abottom a1 and at the other end by a screw'piece a. Thefbottom and screw piece have a small bore h in the centre. This valve body is'lled with felt discs c, between each of which a metal disc 50 d, also provlded with a small bore h, is

` outlet opening 11 and a larger opening` When suflicient 406,094, and in Germany February 29, 192s;

situated. The valve is inserted inthe wall either of the submersiblebody itself serving as container for the compressed air or as a special compressed air container so that' compressed air can escape in the smallest imaginable quantity through the bore of the valve and the felt discs by suitably tightening the screw part a, without any danger of' the bore becoming clogged by foreign lmatters asv the calculation ofl the quantity pass` ing is not as in an ordinary valve effected by a single boring of extremely .small cross section and which can easily become clogged, but by a throttle action o'f the labyrinth-like intermediate spaces of the plurality of felt discs suitably compressed by the screw part.

In this construction the valve is intended for the 'smallest submersible bodies, the weight and water displacement of which/is so counterbalanced that they can sink to the bottombf the water vessel owing to their very slight agcess weight. The compressed air escaping uniformly through the valve in very small quantities then forms a small bubble above the bore h of the screw part which slowly increases in volume and when it has attained a suflicient size rises together with the submersible body to the water surface, where it bursts and the submersible body again sinks 'to the bottom.

For larger submersible bodies for rising which a small bubble will not suffice, an air collecting chamber 'e is provided above the outlet openin .of the valve (Fig. 2), which chamber has 1n its uppermost point asmall k at the side. When the submersible body is at the bottom the collecting chamber is lled'with water, the air escaping from the valve bore h collects under the small outlet opening and slowly forces out thev water through the lower opening of the collecting chamber. air has collected to raise the submersible body, i outlet opening reaches the surface of the water when the air can escape, whereas water flows in through the lower opening lc and the submersible body then again sinks. In

the bodv rises until the air l the .case of the largest sized submersible bodies in, which the escapement of the air durin in said valve l specified through the small outlet opening would take too long, an accordin ly enlarged o nin may be closed by a at valve f (Ixig. 3g

the submerging operation. If or the possible wor in duration a compressed air at a suitably hig pressure is employed which naturally will cause a tooquick escapemenil when freshly charged, a pressure reducing valve g (Fig. 3) may be arranged in front of the outlet openingl of the valve. Fig- 4 shows as an example of the use to which the arrangement may be put, being a diagrammatical view in longitudinal section of a submaine 1. serving as submersible body and tted with valve according to Fig. 3.

l. An automatic submersible device in which gas or compressed air escapes from a container, comprising in ,combination a valve body in said container having an air escapement openingofelt packing discs arranged dy, metal disc interposed bctween said felt dlscs in said valve body having a bore in the centre, and an adjustin screw piece threaded into said .body an adapted to compress said lfelt discs.

automatic submersible device as in claim 1, comprising in combinat1on with the screw part an air collecting chamber.

In testimony whereof I aix my signature.

PAUL HERBST.

urpose of obtaining the longest y 

